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for optimum performance.
■, Make back-up copies of all important data.
■, Remember to follow any special regulations in force in any area, and always switch off your
device when its use is prohibited or when it may cause interference or danger.
■, Keep the device dry. Precipitation, humidity, and all types of liquids or moisture can contain
minerals that will corrode electronic circuits. If your device does get wet, remove the battery,
and allow the device to dry completely before replacing it.
■, Do not use or store the device in dusty, dirty areas. Its moving parts and electronic
components can be damaged.
■, Do not store the device in hot areas. High temperatures can shorten the life of electronic
devices, damage batteries, and warp or melt certain plastics.
■, Do not store the device in cold areas. W hen the device returns to its normal temperature,
moisture can form inside the device and damage electronic circuit boards.
■, Do not attempt to open the device other than as instructed in this guide.
■, Do not drop, knock, or shake the device. Rough handling can break internal circuit boards
and fine mechanics.
■, Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the device.
■, Do not paint the device. Paint can clog the moving parts and prevent proper operation.
■, Use a soft, clean, dry cloth to clean any lenses (such as camera, proximity sensor, and
light sensor lenses).
■, Use only the supplied or an approved replacement antenna. Unauthorized antennas,
modifications, or attachments could damage the device and may violate regulations
governing radio devices.
